What we do
- Build-up of worn shaft journals, bearing seats and seal running surfaces
- Wear and corrosion protection coatings on shafts and machine parts
- Salvage of parts with undersized seats instead of replacing them
- Finish machining (turning or grinding) to the required dimension, coordinated with our machining partners
- Assessment first: wear pattern, material and dimensions are reviewed before an offer is made
OceanSphere organises the job and stays your single point of contact. The work itself is carried out together with vetted partner companies and experienced service engineers.
Machines, makers and components
Shafts
Propeller shaft and intermediate shaft journals, pump shafts, motor and generator shaft seats, winch and crane shafts, rudder stock journals.
Bearing and seal seats
Bearing seats on shafts and in housings, shaft sleeve seats, seal running surfaces.
Typical damage
Wear, scoring, fretting at press fits, corrosion pitting, undersized seats after earlier repairs.
How it works
Request
Describe the job in the form: machine, location, what is wrong or needed.
Review
We check every request personally and come back by e-mail, with questions if something is unclear.
Offer
You receive an offer with scope and conditions. A request is not an order.
Execution
Vetted partner companies and service engineers carry out the work, worldwide. You keep one contact person at OceanSphere.
What we need from you
The more you send, the faster we can judge the job. Missing details are no obstacle: send what you have.
- Drawing or key dimensions: diameter, length and width of the worn zone
- Base material, if known
- Type of damage: wear, scoring, fretting, corrosion or undersize
- Required final dimension and tolerance
- Operating conditions, for example sea water, oil, load, speed
- Manufacturer and type or model
- Serial number or engine number (from the nameplate)
- Photos: nameplate, the part or machine, the damage
- Port or location of the machine or vessel
- Date or time window, and any deadline
- Vessel name and IMO number (optional, kept internal, never published)
Frequently asked questions
What kind of damage can be repaired this way?
Typically wear, scoring, fretting, corrosion pitting and undersized seats on shafts and bearing seats. Cracks, bent shafts and structural damage need to be assessed first; send photos and measurements and we tell you whether spraying makes sense.
Why spraying instead of build-up welding?
Thermal spraying puts less heat into the part than build-up welding, which lowers the risk of distortion. Which process fits depends on the part, the material and the load; the partner company assesses this.
Is the finish machining included?
The coating is applied with allowance and machined to the final dimension. We coordinate this step; the scope of each job is stated in the offer.
Does the part have to be dismantled?
Normally the part is removed and treated in the workshop. Work in place is only possible in special cases; describe the situation and we check.
Is there a size limit?
That depends on the equipment of the partner company. Send diameter, length and weight and we check.
Is a new part an alternative?
Often. We can offer both: the repair by spraying, or a new or reconstructed part (see Spare parts sourcing, Machining and 3D printing and reverse engineering).
Is a request binding?
No. A request is not an order. We check it personally and come back by e-mail with an offer or with questions. Orders are subject to our General Terms of Business.
Who carries out the work?
OceanSphere organises and coordinates the job. The work is done together with vetted partner companies and experienced service engineers. You have one contact person who keeps the overview.
Request this service
Describe the job in the request form. We check every request personally and reply by e-mail. A request is not an order.
Opens the service request form with this service pre-selected.
Other services
Spare parts sourcing
Parts for ships and industrial plants, including discontinued ones.
Steel construction, welding and steel repairs
Steel repairs and fabrication of every kind with a partner company in Hamburg.
Machining: turning and milling
Parts made to your drawing, manufactured in Germany.
3D printing, 3D scanning and reverse engineering
Reconstruction of parts that are no longer available.
Two-stroke main engine service and overhaul
Main bearings, crosshead and cylinder units with an experienced service engineer.
Four-stroke auxiliary engines and engine room machinery
Auxiliary engines, pumps, separators and compressors: service and parts.
Technical surveys and inspections of machinery
Condition surveys and inspections by partner engineers. Not class surveys.
Technical data and datasheets
The equipment library at engines.oceansphere.io.